AD1934 Data Sheet
Rev. D | Page 24 of 28
DLRCLK
INTERNAL
DBCLK
DSDATA
DLRCLK
INTERNAL
DBCLK
TDM-DSDATA
32 BITS
06106-059
Figure 19. Serial DAC Data Transmission in TDM Format Without DBCLK (Applicable Only If PLL Locks to DLRCLK)
DLRCLK
DBCLK
DSDATA
DATA MUST BE VALID
AT THIS BCLK EDGE
MSB
06106-060
Figure 20. I
2
S Pipeline Mode in DAC Serial Data Transmission (Applicable in Stereo and TDM Useful for High Frequency TDM Transmission)
Data Sheet AD1934
Rev. D | Page 25 of 28
APPLICATION CIRCUITS
Typical applications circuits are shown in Figure 21, Figure 22,
and Figure 23. Recommended loop filters for LR clock and
master clock as the PLL reference are shown in Figure 21.
Output filters for the DAC outputs are shown in Figure 22 and
Figure 23 for the noninverting and inverting cases, respectively.
39nF
+
2.2nF
LF
LRCLK
AVDD2
3.32kΩ
5.6nF
390pF
LF
MCLK
AVDD2
562Ω
06106-027
Figure 21. Recommended Loop Filters for LRCLK or MCLK PLL Reference
3
1
2
OP275
+
4.75kΩ4.75kΩ
4.7µF
+
DAC OUT
240pF
NPO
270pF
NPO
3.3nF
NPO
AUDIO
OUTPUT
4.99kΩ
604Ω
4.99kΩ
49.9kΩ
06106-024
Figure 22. Typical DAC Output Filter Circuit (Single-Ended, Noninverting)
2
1
3
OP275
+
3.01kΩ11kΩ
4.7µF
+
DAC
OUT
CM
0.1µF
270pF
NPO
68pF
NPO
2.2nF
NPO
AUDIO
OUTPUT
604Ω
49.9kΩ
11kΩ
06106-025
Figure 23. Typical DAC Output Filter Circuit (Single-Ended, Inverting)
AD1934 Data Sheet
Rev. D | Page 26 of 28
OUTLINE DIMENSIONS
COMPLIANT TO JEDEC STANDARDS MS-026-BBC
TOP VIEW
(PINS DOWN)
1
12
13
25
24
36
37
48
0.27
0.22
0.17
0.50
BSC
LEAD PITCH
1.60
MAX
0.75
0.60
0.45
VIEW A
PIN 1
0.20
0.09
1.45
1.40
1.35
0.08
COPLANARITY
VIEW A
ROTATED 90° CCW
SEATING
PLANE
3.5°
0.15
0.05
9.20
9.00 SQ
8.80
7.20
7.00 SQ
6.80
051706-A
Figure 24. 48-Lead Low Profile Quad Flat Package [LQFP]
(ST-48)
Dimensions shown in millimeters
ORDERING GUIDE
Model
1, 2
Temperature Range Package Description Package Option
AD1934YSTZ −40°C to +105°C 48-Lead LQFP ST-48
AD1934YSTZ-RL −40°C to +105°C 48-Lead LQFP, 13” Tape and Reel ST-48
AD1934WBSTZ −40°C to +105°C 48-Lead LQFP ST-48
AD1934WBSTZ-RL −40°C to +105°C 48-Lead LQFP, 13” Tape and Reel ST-48
EVAL-AD1938AZ Evaluation Board
1
Z = RoHS Compliant Part.
2
W = Qualified for Automotive Applications.
AUTOMOTIVE PRODUCTS
The AD1934WBSTZ and AD1934WBSTZ-RL models are available with controlled manufacturing to support the quality and reliability
requirements of automotive applications. Note that these automotive models may have specifications that differ from the commercial
models; therefore, designers should review the Specifications section of this data sheet carefully. Only the automotive grade products
shown are available for use in automotive applications. Contact your local Analog Devices account representative for specific product
ordering information and to obtain the specific Automotive Reliability reports for these models.

AD1934YSTZ

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Audio D/A Converter ICs IC 8 CHAudio w/on chip PLL
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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